#bivalve fossils

[uk-fossils]

1kg British Jurassic Fossil Mix – 26 x Genuine Fossils from Dorset & Somerset UK – Ammonites, Bivalves, Belemnites & More – With Certificate of Authenticity

This listing is for a 1kg British Fossil Mix packed full of genuine Jurassic fossils discovered in the world-famous fossil beds of Dorset and Somerset, UK. The mix includes a diverse assortment of beautifully preserved specimens such as ammonites, bivalves, belemnites, gastropods, brachiopods, and other trace fossils from the Jurassic Period (approx. 201–145 million years ago).

This particular fossil mix was collected by our own team members, Alister and Alison, on 29 March 2025, and each piece has been carefully cleaned, prepped, and treated by Alison to ensure the highest quality. Every 1kg mix is unique but will always contain a varied and exciting selection of fossils, perfect for collectors, educators, gift-givers or fossil enthusiasts of all ages.

These fossils originate from ancient seabeds that once covered what is now the British Isles. Over millions of years, marine creatures like ammonites (extinct cephalopods), belemnites (squid-like animals with bullet-shaped guards), and bivalves (early clam relatives) were buried in sediment and gradually fossilised, capturing a rich record of prehistoric life.

Item Details:

Specimen Type: British Fossil Mix (approx. 1kg)

Fossils Included: May include ammonites, belemnites, bivalves, gastropods, brachiopods, and trace fossils

Age: Jurassic Period (201.3 – 145 million years ago)

Location Found: Dorset & Somerset, UK

Discovered By: Alister & Alison (29 March 2025)

Cleaned & Prepped By: Alison

Certificate of Authenticity: Included

Scale Reference: 1cm scale cube (please refer to photo for full sizing)

ACTUAL AS SEEN: The image shows the exact 1kg fossil mix you will receive. Each specimen is individually chosen and photographed to ensure complete transparency. These fossils are naturally shaped, so measurements are approximate.

Please note:

Some fossils may be propped up for photography purposes.

Colours may vary slightly due to lighting and screen settings.

Once sold, a new mix will be listed with new photos and specimens.

Add a fascinating slice of British prehistory to your collection today! 100% Genuine Fossils – Cleaned, Prepared, and Certified.

[transparentfossil]

Mix fossils Ammonite Teeth Shark Gastropods lot Bivalve Goniatite Crinoide 11

[drafthearse]

Nototrigonia cinctura, fossil trigonid bivalve. Registration nos. P 105465 - P 105469.

[mineralsrocksandfossiltalks]

March Madness: Bracket 1

It is officially time or March Madness! This year we are pitting the biggest of the big against each other (unless hey were in a previous March Madness. Sorry Argentinosaurus and Deinosuchus!). Remember, this is not about "who would win in a fight". These organisms have a lot more going for them than that.

So, without further ado here are the first two competitors: Campanile giganteum vs. Platyceramus platinus.

Campanile is the largest gastropod ever at a whopping 35 inches long. That is almost 3ft (1 m) long!

Platyceramus on the other hand is the largest bivalve ever. Typically around 3ft 3 in across, the largest one on record was over 9ft across!

Which of these shelled giants should move on the the next tier?

[abandonedshops]

my fossils :)

got some shells, corals, ear bones, various scutes, bivalves and various animal teeth! i like to think about the "x" rock a lot and wonder what it is. right now i like to think it's a mark of predation of some kind.

[wh00pwh00p]

look there's not ganna be any art for the next couple weeks (exams >:|)so I offer my favourite specimens in my collection :D

(did anyone think a rock post is what would substitute the lack of art)

gryphea - brachiopod looking bivalve (silly)

brachiopods (unspecified) - both jurassic in age found in the same place a year apart

obsidian furnace slag - admittedly this isn't in my collection bc it's full of lead but it is pretty

I've got a lot more n some rlly nice corals (if people wanna see I'll share em but I don't have the photos sitting on my phone) but I'd love to find an ammanoid or trilobite n hopefully in the spring I'll get some neat igneous specimens

tbh I think my favourite are the fossils of the small stuff yk, I'm never ganna find a full dinosaur but I will find a full brachiopod or coral

[mesozoicmarket]

A bivalve fossil of an Antiquilima succincta from the Frodingham Ironstone in Coningsby, Scunthorpe, Lincolnshire, England. This Lower Jurassic aged bivalve is found in various regions of Europe.

[strigops]

boy i love getting jumpscared by random raw chunks of unlabeled asbestos in the donated collections

[raphlecia]

Illustration of Cretaceous Bivalvia (previously called Lamelliabranchia) by Thomas Alfred, Brock from the Monograph of Palaeontographical Society Vol. 63 (1909)

[katarinanavane]

All fossil charm necklace and charm bracelet! Currently making stock for the upcoming Columbus oddities and curiosities expo (4/20 and 4/21 2024) but if you'd like me to list this one online instead or if you'd like a custom one any time message me!

[uk-fossils]

1kg British Jurassic Fossil Mix – 15 x Genuine Fossils from Dorset & Somerset UK – Ammonites, Bivalves, Belemnites & More – With Certificate of Authenticity

This listing is for a 1kg British Fossil Mix packed full of genuine Jurassic fossils discovered in the world-famous fossil beds of Dorset and Somerset, UK. The mix includes a diverse assortment of beautifully preserved specimens such as ammonites, bivalves, belemnites, gastropods, brachiopods, and other trace fossils from the Jurassic Period (approx. 201–145 million years ago).

This particular fossil mix was collected by our own team members, Alister and Alison, on 29 March 2025, and each piece has been carefully cleaned, prepped, and treated by Alison to ensure the highest quality. Every 1kg mix is unique but will always contain a varied and exciting selection of fossils, perfect for collectors, educators, gift-givers or fossil enthusiasts of all ages.

These fossils originate from ancient seabeds that once covered what is now the British Isles. Over millions of years, marine creatures like ammonites (extinct cephalopods), belemnites (squid-like animals with bullet-shaped guards), and bivalves (early clam relatives) were buried in sediment and gradually fossilised, capturing a rich record of prehistoric life.

Item Details:

Specimen Type: British Fossil Mix (approx. 1kg)

Fossils Included: May include ammonites, belemnites, bivalves, gastropods, brachiopods, and trace fossils

Age: Jurassic Period (201.3 – 145 million years ago)

Location Found: Dorset & Somerset, UK

Discovered By: Alister & Alison (29 March 2025)

Cleaned & Prepped By: Alison

Certificate of Authenticity: Included

Scale Reference: 1cm scale cube (please refer to photo for full sizing)

ACTUAL AS SEEN: The image shows the exact 1kg fossil mix you will receive. Each specimen is individually chosen and photographed to ensure complete transparency. These fossils are naturally shaped, so measurements are approximate.

Please note:

Some fossils may be propped up for photography purposes.

Colours may vary slightly due to lighting and screen settings.

Once sold, a new mix will be listed with new photos and specimens.

Add a fascinating slice of British prehistory to your collection today! 100% Genuine Fossils – Cleaned, Prepared, and Certified.

[transparentfossil]

Source

[allpowerfulaxolotl]

Recently I’ve started fossil hunting, and I’ve found several things on the surface of boulders in riprap along the Chicago river. I have no idea what species any of these things may be, but I know it’s at least mostly stuff from an ancient ocean floor. This includes things like bivalves and corals—many corals. These are pictures of a handful of the things I’ve found with a ruler for scale.

[unshatters-your-teacup]

@mollymerula and @wilderminds both said they’d steal my fossil rock so here’s some pictures of it. It’s a bunch of crinoid fossils that are pretty small but there’s a lot of them

[drhoz]

a few more fossil molluscs from NZ, that @purrdence found at a B&B on the Fossil Coast. Unfortunately she didn’t ask exactly where the owner had found them, so narrowing down an ID is beyond me, beyond two scallops and what might be a brachiopod.

[bjarkob2620]

Fossil bivalves

We did find some Posidonia fossils on our field trip, in the Kulmtonschiefer. Teach says it must be a water escape structure, but I swear we found one in a Dasberg sandstone as well... (not the one in the picture, the sandstone has been lost in the pile. Picture is Kulmtonschiefer - we think).